230 not running right - The 1947 - Present Chevrolet & GMC Truck Message Board Network

old cruiser · 09-24-2011, 10:23 PM

Hi guys , here's the deal. My 230 inline 6 is popping thru the exhaust every now and then. I removed 1 plug lead at a time to hear any difference in running. Numbers 5 and 6 don't seem to change the way the engine runs when I remove one of these leads. Next step change leads no change. swap plugs no change . compression test al cylinders between 115 and 120 psi.
Removed valve cover and checked to see push rods loose on these cylinders in their firing position all good. tightened manifold .
Scratching my head, now any ideas ?
Thanks in advance for any imput
Cheers Matt

09-24-2011, 10:23 PM	#1
old cruiser Registered User Join Date: Mar 2010 Location: Camperdown Vic Australia Posts: 230	230 not running right Hi guys , here's the deal. My 230 inline 6 is popping thru the exhaust every now and then. I removed 1 plug lead at a time to hear any difference in running. Numbers 5 and 6 don't seem to change the way the engine runs when I remove one of these leads. Next step change leads no change. swap plugs no change . compression test al cylinders between 115 and 120 psi. Removed valve cover and checked to see push rods loose on these cylinders in their firing position all good. tightened manifold . Scratching my head, now any ideas ? Thanks in advance for any imput Cheers Matt



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